/Engine/Plugins/Interchange/Runtime/Source/Nodes/Public/InterchangeShaderGraphNode.h
From an attribute key associated with an input (ie: Inputs:InputName:Value), retrieves the input name from it.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | Material") static [FString](API\Runtime\Core\Containers\FString) MakeInputName ( const [FString](API\Runtime\Core\Containers\FString) & InputKey )